Impression cylinder arrangement of an intaglio machine for web-fed printing
CA 2039445 C · Owner: Feser, Norbert Adolf · Inventors: Scheller, Wolfgang Leo; Feser, Norbert Adolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An impression cylinder arrangement for an intaglio machine used for web-fed printing comprises a rotating impression cylinder with a circumference and a surface section extending partially around the circumference and a, cooling device for cooling the impression cylinder. The device for cooling the impression cylinder includes a plurality of continuous metal belts which run over two drums, which partially wrap the impression cylinder and are carried along by the latter during its rotation. These metal belts discharge the heat arising at the surface of the impression cylinder during the printing operation and are themselves cooled by the fact that one of the two drums is constructed as a …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 28, 1991 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.